Street-sweeper



2 Sheets-Sheet (No Model.)

' W. A. GREEN.

STREET SWEEPER.

No. 525,0?5. Papented Aug-...28, 18.94.

[NVE/V202 i f .dilorney WIWESSE'S ,(No Model.)

W. A. GREEN. STREET SWEEPEE.

No@ 525,075. Patented Augfzs, 1894.

@52W/'5 't/Ma.

2 Sheets-Sheet 2.

' dlarney UNITED STATES PATENT OFFICE.

WILLIAM A. GREEN, OF TRENTON, NEW JERSEY, ASSIGNOR OF THIRTEEN- TWENTIETIIS TO BARNET T G. D. UNGER, GEORGE H. VHITEHEAD, AND NICHOLAS JAHN, OF SAME PLACE, AND THOMAS Il. CLARK, OF EWING,

NEYV JERSEY.

4sTRl-:IaT-swnEE.PER..

"SPECIFICATION forming part of Letters Patent No. 525,075. dated August 28., 1 894.

Application filed August 4, 1895i. Serial No. 482,401. (No model.)

' justed, and this To all whom it may concern." v

Be it known that I, WILLIAM A. GREEN, .a

oitizenlof the United States, residing at Tren- 4ton,1n the county of Mercer and State of Newvention therefore consists in the construction,

arrangement and combination of parts substantially as will be hereinafter described and claimed. l

. In the annexed drawings illustrating my Invention: VFigure 1 is a side elevation of my improved street-sweeping machine with certain parts broken away. Fig. 2 is arear elevation, likewise with certain parts broken away. Fig. 3 is a top plan view of the entire machine.

Similar letters of reference designate the same parts in the different gure's.

A denotes the main frame of the carriage of my improved machine. This frame is mounted upon the rear wheels B and rear axle B', the fore carriage C and fore wheels D. The construction of the carriage frame however and its arrangements with wheels for the purpose of locomotion may vary within wide limits, and the particuiar combination herein given is by wayof.example merely..

Crosswise ofjthe frame A and tolerably close to/the ground, is a revolving brushy H;

constructed in any desired manner` and of such strength and durability asfwill fit it to sweep the surface over which the carriage may be drawn. This brush is supported revolubly in the frame A. Its shaft K is held at each end in journal blocks h, which are supported in horizontal slots in boxes L. Thus l the blocks hl are adjustable'in the slots so as to permit thebrush H to be' horizontallyadadjustment of blocks h is ef- "5o fected by means of screw bolts fm. The boxes L are vertically adj estable in the'guide ways M in frame A,'as shown. l

To each of the vertically-movablejournal .box supports L, is attached a vertical rod'NLS which Works vertically through a bearing in frame A. The upper ends f therods'N are attached to the.levers n n, which are aflixed;

to the horizontal shaft n', which is supported vin bearings uponx frame A, as shown in' Fig. @e

1, said levers being operated by means of the lever I), situated near the drivers seat 0' which lever connects with the arm rn.2 of shaft ft', by means of link o. Byoperating thale-A ver O'therefore, the brush orbroom H can be' 65 adjusted so as to be more orless-aberrantupcmr-M the ground, as may be required by Acircumstances. l ,v j

The main laxle B is made fast to -the rear wheels B B and revolves therewith." This' In,

axle carries a gear wheel a, which meshes with a pinion b on a countershaft P, which;

is located in bearings and parallelto shaft Bf. Thus the shaft P is driven by the motion of the vehicle. I are keyed theasprocket Wheel Q at one end andthe bevel pinion p at the ot-her,end-'seel Fig. 3. The lsprocket wheel Q drives the brush I-I by means of a link belt q, .which passes around sprocket Q and also around S'o another sprocket wheel K', which is keyed fast upon .the shaft Kof brnshH.- The bevel pinion 1o is feathered on the shaft so aste slide back/and forth to be engaged with o r disengaged frpm another bevel gear wheel fr, 85 which is fast on shaft R that is locatedat .Iigltt, angles to, shafts B and P, and which extends substantially the full length of vthe frame A so that it may be employed in operating the dust-removing mechanism, as will 9g be presently explained, see Fig. 3. The pinion p is adjusted and thrown into or out of. engagement by/means of pivoted lever handle S, situated near the drivers seat-see Fig. 2--which connects by rod s with the forked 95 lever s that engages a collar on the pinion p, all as clearly shown. f A

,Beneath the frame A 'and adjacent to the On-'shaft -P moreover, 7 5,y

l rotary brushH, is a flat .horizontal dirt-re `celving tray E. ThisV is located close to 1the .L clined. The purpose of this extension E is tension Ef is hinged to a plate E2, resting i Araised od the road, the hinged platform E 3.

Va length equal to that of broom Hg which platform orextension is adjacenttotthe'broom' -treughshapedfeasing'locatcd transversely of tenore ground and receives thefdirt and dust thrown upon itbyithe revolvingbrush. Thisirajf` -E 1s providediwith a'hingedfplatform E', of`

H; as shown in Fig. l and isA preferably in'-.

to bring the broom and platform E closer together so that the sweepings may be more effectually gathered. f V a'l?11e.tra5z-.E..may. barriada. in sections l l QQ; sired. 'Also it may be provided with rollers E? if desired, which/are placed on .the underside of the tray to prevent it fromV Vactually scraping upon the roadbed. Thehinged en upon thetray E and soarranged that this plateE2 may be adjustednearer to or farther away from the periphery of the broom jas, may be required; and when adjusted it may locking-devices. At each end of the extension E is attached a chain or cable c, which is connected to the elevating appliances of fm, in such a way that when the broom is may likewise be raised clear of the roadway and may drop again when the broom is loW-" ere y l y `Around andabove the tray E is a dust `guard or dust-receiver G which is simplya frame A and supported thereby so as to direct all the dust and sweepings surely into the tray E. The shape of this trough or casing may vary considerably. Of course this casing will be open on the side next to the brush H. j

I will now describe the mechanism by which the sweepings are removed automatically from they tray'E and discharged continuously from the machine. At one side of the machine; 4preferably near theforward end is an upright chute or elevator casing T, having a discharge mouth T at the upper end. This casing T is pivotally supported at its lower end on a shaft c, as shown, and it is therefore adapted to occupy an inclined position, as shown in full lines in Fig. 2, this being the position that it takes when the machine is in use and the elevator is in operation, or it may occupy the position shown in dotted lines in i Fig. 2, where it is close against the side of the machine and out of the way, this being the position that it takes when the machine is not in use. The lowerendof the casingT is opposite to oneend of the tray casing G, so that the dirt in the tray may readily be carried therefrom into casing T and up through same to be discharged at 'mouth T. This transference of the sweeping from the tray to the discharge is accomplished by means of an endless carrier or elevator', consisting ot p form ne mehr@ 'Lf 1W "lr Eifel! l'wlttt ll'rt hebilla@ shown in the'drawings at F F, to whiclris-se-` cured atshortsintervals apart, a series ofscrapers or transverse'blades F F', acting buckets to carry ,the ydirt up the -dlsrzhargige`- The shaft AR transmits 'motion from the ,rear aaleitoepera'te thisconveyer. this shaft are sprocket wheels R R around Keyed upon which the link belts FF pass. y These Wheels Rgare at the end of tray E, farthest fromthe casing T 'In the upper end of casing T, ad-

jacent tothe discharge mouth T are guide rollers U around which the chalns F also pass.

P And furtherit will be seen'rthat there is a g'uideroller Vat the baseof' casing'l, around which lroller the chains F F pass.`

The casing ',I isprovidedwith chains t, which wiudlnpon "pnlleysatI on the shaft i?, which has an `operating hand-wheel tnear the drivers seatg Inthislway the casing is moved upon its pivotal support and either drawn up into an uprightV position where 1t is out ot' the way, position for use; l A

W denotes. a supplementary scraper, supported pivotally in mouth T' l of spout T. This scraper after traveling upon a scraperblade vF of the endless conveyer, falls into position to act upon the following 'blade',.unt1l released by thebIade having attained a cer tain. angular positiomthus taking'oft any adhesive substance ppon theblade of the endless scraper and delivering same through the opening T. 4"

The operation of the machine willbe readily Abart can travel alongside of the sweeper, with its open'body beneath the mouth T to receive the dirt that will be discharged therefrom., The endless conveyor will act cihciently to .convey thel dirt gathered by the brush upon tray E, upward and out through the mouth YT', and hence the machine will have great efficiency and capacity.

Having thusdescribed my invention, what I claim as new, and desire to secure by Letters l. lnastrcet sweeping machine, the combination of a rotary brush located transversely to the movement of the vehicle, a dirt receiver, consisting of a transversely located horizontal tray adjacent to the brush, a dust guard surrounding the tray and open'on the side next to the brush, a box-shaped elongated chute leading outward and upward 1n an inclined position from one end of the dirt tray, said end being pivotally mounted,and

or lo wered intoan inclined IOO IIO

the upper endof the chute having a discharge mouth, a supplementary scraper W pivotally supported in said mouth, a dirt conveyor consisting of chains F F and scraper blades F secured thereto by means of which conveyor the dirt is carried upward through the chute and discharged at its mouth, and the chains t, shaft t2, having pulleys t on whichthe chains wind, all arranged for the purpose of adj the chute, substantially as ,deser 2. Ina street sweeping machine, the combination ofthe rotary brush H, having shaft 77, the gnideways M, -the slotted vJox L, adjustabie in said guide-ways and carrying blocks h, in which shaft K is journaled, the bolts m for adj listing blocks h, the vertical rods N nttnch'ed to the box L, levers fol` operating rods N, tho .dirt tray E, having extension E', and

the chains e, laittachesd to extension E and to bolts m, allai-ranged substantially as dero scribed.

l wlLLiAisi A. GREEN.

Witnesses: i

BENJ. N. BALDwiN,

WM. S. GARY.

Corrections in Letters Patent No. 525,075

l i i ment in Streetsweepers, errors atppenr requiring the following corrections, viz: In line 7, of the grant end in the printedhertd of the specification, it is stated that seid Green assigned thirteen-twentieths. to Burnett Gr. D. Unger, George H. Whitehead, lNicholas Jahn, and Thomas H. Clark, whereas it should have been stated that he I.weighted one-half; und that the sztidLetters Patent should he rend with these eerrections therein that the seme may conform to the record of the cese in the Patent Oiiice.

Signed, counters'igned, end sealed this llt-h dany of September, A. D. 1894..

{SEAL} JNO. M. REYNOLDS.

l Assistant Secretary of the Interior. Couutersigned S. T. FISHER,

Act-ing Commissioner of Patents.

It is hereby certified that in Letters Potent o. 525,075, grunted August 28, 189%,y upon the application ot' William AfGreen, of Trenton, New Jersey, for an improve- 

